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There is no shortage of startups and enterprises animated by, or outright proclaiming, replacing e-mail as the de-facto open internet messaging standard. VC Investors are forever fascinated by funding such endeavours. #matrix #simplex #slack etc are examples.

#deltachat endorses e-mail but reconfigures and repurposes it to serve for interoperable instant messaging. The #chatmail server network relays end to end encrypted e-mail only, and servers are reduced to dumb store-and-forward relays.
#matrix #simplex #chatmail #deltachat #slack
Michał Narecki
that's why you're going to win in the long run. And I realize it's not about winning, but rather having multiple options. Still, it felt good writing this statement 😉
il fruttivendolo
what is "VC"?
Delta Chat
venture capital is a form of risky investment looking for large returns (because many of the funded entities fail)
arutaz
does Delta Chat have post quantum encryption?
If not, is that planned?
Delta Chat
at he upcoming openpgp summit in April post quantum cryptography will be a topic. ... See also https://datatracker.ietf.org/doc/draft-ietf-openpgp-pqc/ which is close to finalization ... So sooner or delta will grow support for pqc but it's, frankly, a bit overrated. There are many more immediate threats to care for like blocking and censorship attacks. Because what good is a service, however cool.cryptographically, if it can not be actually used?

Post-Quantum Cryptography in OpenPGP

This document defines a post-quantum public-key algorithm extension for the OpenPGP protocol. Given the generally assumed threat of a cryptographically relevant quantum computer, this extension provides a basis for long-term secure OpenPGP signatures…
IETF Datatracker
mray
You are ridiculous! Never in tech history was the repurpose of old tech a success. Take the internet for exam…

🤭

… well. Go on then. Maybe you are on to something after all.
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Mikalai
"servers are reduced to dumb store-and-forward relays".
But since it is SMTP transport, hacked server can become to store-record_sender+recipient_pair-and-forward.

Look. Signal has server code open. How do I know that right now my client side connects to server running this code?
Hence, what client tells server becomes important. In SMTP client fills to and from fields, plus authentication to sending server.

Next step would be an option to use better transport.
Dieser Beitrag wurde bearbeitet. (3 Wochen her)
Adnan 🦙
These accounts are anonymous. But yes, a server in the middle could record that 2 people are talking to each other.
Mikalai
you mean accounts are pseudonymous, i.e. instead of real name, some funky address is used, but, I assume, it is just used on and on.
From AOL's example we know that pseudonymity is not enough.
Delta Chat
agreed, if you repeatedly use the same address identifier, however random, it becomes a form of identity over time. Today, you can instantly move to another address and by messaging with green-checkmarked chats, receivers will recognize and accept your migration without the servers being involved or knowing about each other. This is the basis for further developments but unless you are ready to help implementing, we are not going to discuss that much further here ;)
Mikalai
Slow down the horses, please. Conversation about architecture doesn't mean I am asking you to implement anything.

We have pointed that we shouldn't forget about ano/pseudo-nymities' differences of transport layers, which Delta can swap, cause architecture has a nice separation.
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